you guys are really some strange kind... You can install XFree on your own, but installing some freaking fonts is such an issue?

Well, if you've got a quick and dirty solution, I'd love to hear it. I spent a lot of time trying to get Chinese fonts to install, but no luck. Read the forums, closely followed the advice, but no luck. I just wish Asian language fonts were enabled by default. Maybe less than 5% of Slack users need this, but hey, we exist.